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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 8, 2025
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Topics: 17 / Replies: 2679
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RE: What happens when the outside temperature exceeds the upper WC point?

@judith Thanks, Ill give it a go. Given the tight hysteresis do you turn up the target temperature a bit to ensure it switches back on early enough ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: What happens when the outside temperature exceeds the upper WC point?

My Vaillant definitely has a 'Max outside temp for heating' parameter. What it doesn't have, unfortunately, is a 'Max solar irradiance for heating' ...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Good to hear this, sensible to set the WL2 curve the same as WL1 for now also, avoids any ambiguity. Sun and south facing windows can be a mixed bag....

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Obviously without knowing how it is set up its impossible to comment on this. It seems your installer left it with settings that didn't work for you....

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Sorry but without more complete information its impossible to tell what is going on. Screen shots of the controller when its operating (making sure a...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Maybe. The alternative behaviour is that, above 10 outside, it keeps the flow temperature at the value for 10. Not sure which the Samsung odes. Se...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

There is something odd going on. It says water outlet 34 yet if it is running on WL1 with the parameters you showed us earlier it should never get to...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Share Your Experiences with Heat Pump Manufacturer Support

I didn't realise that Samsung even had customer support. In my 'discovery phase' I asked them several questions and got precisely zero replies. Even...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

OK, quite small, well insulated. In terms of setting up the heat pump at present solar gain is your enemy. A few more questions, if you are able ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

Assuming your system is running on water law only the indoor temperature registered by the controller doesn't matter. It goes solely (in this mode) a...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

The answer to the first question will (hopefully) be because its cold outside and the heat pump is (effectively) preparing for the effect of the cold ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is my Samsung heat pump working too well?

This is where the control philosophy adopted by Vaillant (and some others, mainly European) wins. They give you a 'room temperature' adjustment, but ...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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